横向
1
Low area between mountains
4
Region near the equator
6
Steep rock face at edge of land
7
Where river meets the sea
10
Goods sold to another country
12
Imaginary line around the middle of Earth
纵向
2
Largest ocean on Earth
3
Large slow-moving mass of ice
5
Distance east or west of prime meridian
6
Deep narrow valley with steep sides
8
Tool for finding directions
9
Flat grassland in tropical regions
11
Chain or group of islands
13
Large natural stream of water